Calculate the Left Riemann Sum - Maple Help

Calculate the Left Riemann Sum

 Description Evaluate $\sum _{i=0}^{n-1}f\left({x}_{i}\right){\mathrm{Δx}}_{i},$the left Riemann Sum of $f\left(x\right)$, $a\le x\le b$.

The Left Riemann Sum

Enter $f\left(x\right)$:

 > ${{x}}^{{2}}{+}{1}$
 ${{x}}^{{2}}{+}{1}$${{x}}^{{2}}{+}{1}$ (1)

Enter the interval $\left[a,b\right]$:

 > $\left[{0}{,}{1}\right]$
 $\left[{0}{,}{1}\right]$ (2)

Enter the value of $n$:

 > ${4}$
 ${4}$ (3)

The left Riemann sum:

 > $\mathrm{Student}\left[\mathrm{Calculus1}\right]\left[\mathrm{RiemannSum}\right]\left(,\left[1\right]..\left[2\right],\mathrm{method}=\mathrm{left},\mathrm{output}=\mathrm{sum},\mathrm{partition}=\right)$
 $\frac{{1}}{{4}}{}{\sum }_{{i}{=}{0}}^{{3}}\phantom{\rule[-0.0ex]{5.0px}{0.0ex}}\left(\frac{{1}}{{16}}{}{{i}}^{{2}}{+}{1}\right)$$\frac{{1}}{{4}}{}{\sum }_{{i}{=}{0}}^{{3}}\phantom{\rule[-0.0ex]{5.0px}{0.0ex}}\left(\frac{{1}}{{16}}{}{{i}}^{{2}}{+}{1}\right)$ (4)

Value of the Riemann sum:

 > $\mathrm{value}\left(\right)$
 $\frac{{39}}{{32}}$ (5)

 > 
 Commands Used